export declare class Blake2b {
    b: Uint8Array;
    h: Uint32Array;
    t: number;
    c: number;
    outlen: number;
    constructor(outlen: number, key: Uint8Array | null, salt: Uint8Array | null, personal: Uint8Array | null);
    update: (input: Uint8Array) => this;
    digest: (out: 'binary' | 'hex') => string | Uint8Array;
    final: (out: 'binary' | 'hex') => string | Uint8Array;
}
export declare const blake2b: (outlen: number, key: Uint8Array | null, salt: Uint8Array | null, personal: Uint8Array | null, noAssert?: boolean | undefined) => Blake2b;
export default blake2b;